JEE98 (Plot 2)

Site: JEE98 (Plot 2)	Land Unit: Dundas Redgum
*Aust. Soil Class.:*

General Land Unit Description:
The flat surface of the Dundas Tablelands predominantly consists of Brown Chromosols and to a lesser extent Yellow Chromosols with a ferric horizon, typically occurring above the clay subsoil. The soil is commonly developed over a highly weathered mottled zone. This red and white mottling, sometimes referred to as ‘tiger mottles’, is thought to be the result of deep chemical weathering which occurred during the late Tertiary period. Red gums are the dominant vegetation found on this surface.

Two year old Eucalyptus globulus plantation on ex-agricultural land.

Site Description:

Geology: Cainozoic duricrust	Landform pattern: Gently undulating plains
Position in landscape: Flat	Internal drainage: Imperfectly drained

Soil Profile Morphology

A1	0-25 cm	Very dark greyish brown (10YR3/2) loamy sand; single grain structure; loose consistence when moderately moist; common medium roots; clear and smooth transition to:
A2	25-65 cm	Very pale brown (10YR7/3) sand; single grain structure; loose consistence when moderately moist; few medium roots; clear and smooth transition to:
	Subsoil
Bs	65-75 cm	Very pale brown (10YR7/3), sand; single grain structure; loose consistence when moist; very many coarse ferruginous nodules; few fine roots; abrupt and tongued transition to:
B22	75-100 cm	Yellowish brown (10YR5/6) with many coarse distinct light grey (10YR7/2) and yellowish red (5YR5/6) mottles, light clay; moderate polyhedral structure (20-50 mm) parting to moderate subangular blocky structure (10-20 mm); weak consistence when moderately moist; very few coarse ferruginous nodules; few very fine macropores; areal porosity 0.02%; few very fine roots; gradual and smooth transition to:
B23	100-150 cm	Yellowish brown (10YR7/2) with many coarse prominent red (2.5YR4/8) and brownish yellow (10YR6/6) mottles, light clay; moderate angular blocky structure (20-50 mm) parting to moderate angular blocky structure (10-20 mm); firm consistence when moderately moist; few very fine macropores; areal porosity 0.02%; few very fine roots.
	150-220 cm	Similar to layer above.
	220-310 cm	Medium clays with sand, grey, red and orange, few coarse fragments of soft sandstone.
	310-390 cm	Medium clays with sand, but with more sandstone fragments. Live roots in old root channels to 390 cm.

Sampled by: Ian Sargeant, Paul Feikema and Kiet Quach (7 December, 2000).

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